Container



March 3, 1936.

L. KINSLEY ET Al.

CONTAINER Filed July 28, 1934 2 Sheets-Sheet l Xt Horn ey.

Marh 3, 1936. L.. KlNsLEY ET AL CONTAINER Filed July 28, 1954 2 Sheets-Sheet 2 iNVENTORS.

. Y M E V e @a n Lu l YS o ..W r 5 .5. mem., /x @LH MUR wHN eW PatentedV Mar. 3, 1936 PATENT oFFlcE CONTAINER Lewis Kinsley, William C. Kinsley, and Nicholas B. Chavcas, Philadelphia, Pa.

i Applicatie July 2s, 1934, serial No. 131,342 p 1o claims. (onzas- 31) Our invention has reference to containers, preferably formed of paper, and more particularly intended for use in transporting and temporarily containing milk or other liquids, and which embody certain features of construction providing built-up containers having great rigidity and being absolutely proof against leakage.

Our invention further consists of features of construction which cooperate to provide a substantially rectilinear structure having strong angular sealing corners, and providing stability when positioned within a transporting carrier.

Our improved container further embodies a plurality of rectangular telescoping casings having overlapping sealed bottom closures resting one upon the other, the closure bottom of one of the casings also being of rectangular shape and having overlapping and interengaging perimetral `edges to form a sealed union between the inner and outer casings.

Our improvements further embody a paper container having flexible top portions so folded and overlapped as to' have opposite side edges resting one upon the other, and provided with slidable sealing means binding the overlapping edges in sealed contact and permitting the re-sealing of the container after a portion of the contents has been removed.

Our improvements also comprise a multi-ply paper container having inner and outer body portions of rectangular shape, one of said portions extending upwardly in a. single-ply beyond the multi-ply body portion; and wherein further,

the inner bo'dy portion .has a. separate inset bottom closure also of rectangular shape, while the outer body 4portion has creased an'd folded lower parts cemented to the bottom closure for positively sealing the bottom of the paper container.

Our improvements further embody features of construction which permit expansion of the contents within the containers responsive to atmospheric changes and without damage'to the containers; and furthermore, because of their rec- 4 tangular shape, the containers are permitted to be closely packed together in upright position within a carrier during transportation, thus preventing warm air circulating between the containers, whereby the contents of the containers are maintained cooler for a longer period than is possible with containers having other shapes.

- With the above and other objects in view, the nature of which will be more fully understood from the following specieatio'n,` the invention consists in the novel features of construction hereinafter more fully described and defined in the claims.

Referring to the drawings: Fig. 1 is a perspective view illustrating our improved container in sealed condition as a finished product; Fig. 2 isa perspective view of the inner body po'rtion 5 forming part of our improved container; Fig. 3 is a perspective view of the bottom closure for the inner body portion of the container; Fig. 3a is a perspective view showing the bottom closure in attached position on the inner body portion of w the container; Fig. 4 represents a sheet blank from which the outer body portion is formed; Fig. 5 is a perspective view showing the sheet corresponding to the outer body portion when in folded condition, land with the inner body portion telescoped therein; Figs. 6 and 7 are inverted perspective yviews showing the bottom of the outer body portion of the paper container in process of being formed; Fig. 8 is an inverted 2| perspective View of the bottom of the outer body po'rtion of the paper container in completed form; Fig. 9 is a perspective View of the slidable sealing means for the upper end of the paper container; Fig. 10 is a perspective view of a contain- 2I er embodying our improvements, but of a modifled construction; Fig.` 11 is a perspective view of the inset bottom clo'sure portion for use in connection with the modified paper container; Fig. 11a.` is a perspective view of one end of the 3. inset bottom closure of Fig. l1, in partial formation; Fig. 11b, is a perspective view o'f the end of the inset bottom closure of Fig. 11, in final form, and preliminary to insertion of the said closure into the outer body portion o'f the modi- 3;, fied container; Fig. 12 is a perspective view of the inner body portion of the modified container, and having the exible top walls; Fig. 13 is an inverted perspective view of the bottom of the outer body portion of the modified container, in 41 process of formation; and Fig. 14 is aninverted perspective view of the completed bottom o'f the outer body portion of the modified container.

2 represents the inner body portion of our improved container, and is formed of sheet mate- 4'; rial rectangular in shape and so creased and overlapped, as at 3,v to form a rectangular box structure, but without top or bottom closures. The overlapped end portions 3 are cemented or glued together so as to make a rigid and sealed 50 joint. At one end of this rectangularstructure is secured a bottom closure portion 4, also of rectangular shape as shown in Fig. 3, said bottom closure being so creased and folded that, when it is inserted or secured to the bottom edges 55 of the body portion 2, it willform a tight closure securely held in portions which contact with the inner portion of the secondary' ilange portions 6 contact with and are sealed to' the outer portion 2, as shown in Fig. 3a.

After the bottom. closure 4 hasbeen gluedor cemented in position in the bottom of .the lportion 2, this part 2 is telescoped into the outer body portion 1, as shown in Fig. 5, and is of a v extends above the inner body part 2 to provide it is provided with reasonable elasticity. Furthermore, the tubular seal is also preferably made vflexible walls I Il which may be creased inwardly and folded upon themselves to provide a sealed closure at the top of the paper container, said sealed closure being maintained in a closed condition by the'employment of a sliding slotted tube II shown in Figs. 1 and 9. This tubular closure II may be, slotted throughout its entire length and is preferably formed of spring metal, whereby tapering sothat it may slide longitudinally and at the same time provide an increased clamping l or sealing action when being slid into position.

This metall sealing part II may act as a handle or means for more readily grasping the containerl and by which the container may be shifted without fear of disengagement during manual manipulation thereof.

Refen'ing to Figs. 6 and' 7, we have shown the container structure as inverted for more clearly illustrating the nature of process of being formed. Atthis stage of the construction, lthe flaps 8 and 9 are extended laterally and radially outward fromv the body portion I (of which they form a part) and the sealing closure 4. 'Ihe flanges 5 and 8 of the bottom closure 4 provide rectangular strength- -ened wens l2 'as a bottom fermdeuon of the v closure 4. 'Ihese walls VI2 provide a space Il constituting a recess having reinforced bounding walls of multi-ply construction, being made up of the anges 5 and 8. of Fig. 3, reinforced by the lower edges I4 of the inner portion 2. Furthermore, these bounding walls are additionally reinforced'by the flap'portions 8 and 9 (Fig. 6) of the outer body portion 1, when they are turned over the edge of the walls I2 and down into the recess I l and glued to both the walls I2 and the bottom closure 4 constituting the closure for the inner body portion 2. This statement eoually applies to the flaps 9 which are similarly bent or folded and glued in-position upon the walls I2and bottom closure 4, as shown in Pigs. 6 and 7. In the case of the flaps 8. however, these are separately glued to the walls I2 and closure bottom 4, vbut in the case of the naps l, these are not-only glued to the walls I2 and closure 4, but also to each other where they overlap, as shown at Il in Fig. 8.

It will be observed that our improved containers are 'substantially rectangular in all directions and, therefore. aside from having a maximum the bottom thereof in portions, and top flexible walls the slidable sealcapacity for the space occupied. arelof such shape that theymaybecloselypackedinatransportingcarrier andprovideaminimum space intermediate of the cmtainers for objectionable passage of air or gases,- thus permitting the contents of the containers tobe kept in ycooler condition for a longer period without deterioration. Furthermore. it will be seen that the paper containers .embodying vour* improved features are of a rigid and stable due to the fact that the inner and outer body portions, including the intermediate inset bottom closure portion, are cemented or glued together and finally waterproofed as a whole, to insure a ytightly sealed structure which is proof against leakage. It will also be seen that the inner and outer container bodies are so ed that the container may be illled with liquid almost to the top and, at the same time, is provided with a detachable sealing means which, together with the employment of a more pliable" paper outlet, enables the intermittent pourlngof the liquid from the container to suit requirements and the re-sealing of the container toV prevent contamination of the unused-contents.

Furthermore. it will be seen that our'improved container is of such construction that the over- 2 are at one side of the conlapped portions ponte side or the container, tiros providing a balanced reinforcing of the walls of the inner and outer body portions ofthe container and thereby imparting strength and durability in a vertical direction. Moreover, it will be seen that while the-.flexible walls Il are double-ply where the overlapped outerbody portion i1 extends above the inner body portion,rthe remaining walls are,

single ply and consequently may be readily shaped to form a pouring lip at one side of the container and also permit easy application of the sliding sealing means II i sealing the container. Y

It will be understood from the description above that the several para making up the containers ance of accurately positioning the parts relatively to each other. Furthermore, the 'construction is such that sanitary conditions are assured, especially as the shape and configuration of the parts making up the container permit the same to be built-up with a minimum handling of the paper or material entering into the structure.

Referring now to the modification of our paper container as shown in Figs. 10 to 14, inclusive, it will be observed that the general principle of constructionY of the contsineris similar to that shown in Figs. 1 to 9, inclusive, in that in both constructions there are innerV and outer body portions. a separate inset bottom closure providing uniting means between the inner and outer body for temporarily sealing the container by use of ing means of a comu-action lsimilar to that shown in Fig. 9.

Referring more particularly to the details of the modified container structure, it will be seen that. in this case the inner body portion II is provided with the top ilexible walls IIa which are flexible walls Il. of Mg. 5, and provided with the when initially sealing or re-vand embodying our improvements may be easily and quickly stamped, or otherwise pre-.-

creased and folded in a manner similar to the tainer. In this modification, it will be noted that the inner portion is open at the bottom and fits into and is glued or cemented to the inner walls of the inset bottom closure portion I8 of Fig. l1.

The inset bottom closure I8 of the modified container corresponds to the structure shown in Fig. 3. inasmuch as in both cases there is a continuous transverse bottom wall which is cemented to the bottom of the outer body portion, see Fig. 14 for example. More particularly referring to the construction of the modified inset bottom closure I8, the following features will be noted: A sheet of paper is folded at both ends, substantially as indicated in Fig. 11b to form a box-like structure (Fig. l1), the same resulting from the Referring now to the outer body portion I9r and more particularly as shown in' Figs. 13 and 14. the same is formed of a sheet of paper folded in rectangular form and similar to what is shown in Fig. 8, but omitting the recess .I therein. In the construction of the modified container of Figs. 13 and 14, the bottom is formed by folding the tabs on line 20 to provide. the closures 2| facing each other and partly closing the bottom of the outer body portion. The tabs limmediately connecting with the parts 22 in Fig. 13. constitute triangular portions Which fold downward upon the bottom portions 2| and, at the same time, carry with them the extension of the side walls, indicated at 23, said walls being folded toward each other and substantially abutting along the line 24, as indicated in Fig. 14; or said parts may be extended to form an overlapped closure, as preferred. The parts 22 are glued or cemented to the parts 2| and substantially close the bottom of the outer body portion I9 of the container. When the outer body of the container is thus formed, it is strengthened by the insertion of the box-like bottom closure portion I8 which is glued or cemented thereto and provides a liquid tight association with the outer body portion.

It will be understood that the modied construction of container shown in Figs. to 14, inclusive, embodies the same stable and durable construction as that of the container shown in Figs. 1 to 9, inclusive, and is likewise made waterproof by dipping in paraffin or equivalent waxlike materials; and may be packed in alcarrier and utilized in a manner similar to the construction illustrated and described in connection with Figs. 1 to 9. Furthermore, the same advantageous results as lto balance of construction and sanitation are also obtained with the modified container as with the container described in connection with Figs. 1 to 9, inclusive.

While we have shown thegeneral-body structure of the container as of rectangular form in the drawings, and have referred to its construction in the specification as being "rectangular" or rectilinear, we do not limit ourselves to this form of construction, as we include within the meaning of the word rectangular or recti- As the inset bot-- linear a container whose wall .faces meet in angular form and preferably embodying one or more right angles.

Of course the container shown and described may be modified in variousways without departing from the invention herein set forth and hereafter claimed.

We claim:

1. A non-collapsible paper container comprising a multi-ply construction formed of rectangular body portions 'of substantially equal height sealed together into a unitary structure and having a strong multi-ply bottom structure composed of an inset piece having substantially V- shaped walls forming receptive grooves into which the bottom edges of' one of the body portions are received to interlock and seal same in contact with the bottom edges of the body portion oi' the container, and also having upper flexible walls of lesser ply opening into the interior of. the container, said flexible walls being creased slightly inward and folded upon themselves to provide a sealed closure, and a slidable spring-like sealing means for maintaining the overlapped edges of the exible walls in sealed contact.

2. A non-collapsible paper container comprising a rectangular body composed of multi-ply paper wrappers, one of the rectangularly formed wrappers extending above the body and having its ends creased approximately from the corners thereof to the center of the edges and having its sides drawn together andvertically folded upon themselves to form a substantially V-shaped sealed pocket above the body. y

3. A non-collapsible paper container comprising a rectangular body composed of multi-ply paper wrappers cemented together, one of the rectangularly formed wrappers extending above the body and having its ends creased approximately from the corners thereof to the center of the edges and having its sides drawn together i and vertically folded upon themselves to form a paper wrappers, one of the rectangularly formed wrappers extending above'the body and having its ends creased approximately from the corners thereof to the center of the edges and having its sides drawn together and vertically folded upon themselves to form a substantially V-shaped sealed pocket above the body, and a coat of wax' covering the entire structure.

6. A non-collapsible paper container comprising an inner rectangular tube, a bottom closure for same, a Wrapper surrounding said tube and cemented thereto and having its ends extended beyond the ends of said tube, one of the extensions of said wrapper folded over the bottom closure, and the other extension having its ends creased approximately fromy the corners thereof to the center of the edges and having its sides vertically folded upon themselves to provide a sealed pocket above the body, and a split tubular spring member adapted to slide over said closure to maintain same.

7. Anon-collapsible paper container comprising multi-ply constructions formed oi' rectangular body portions oi substantially equal height sealed together into a unitary structure andhaving a strong rectangular multi-ply bottom `structure composed ofv an inset.l piece having substantially V-ahaped edge walls forming receptive grooves into which the bottom edges of one of the body portions are received in sealed contact with the bottomedges oithebodyportlonoithscontainer, andalsohavingupperiiexiblewallsotlesserply opening into the interior or. the` container, said ilexible walls having their ends creased approximately from the corners thereof to the center oi the edges and its sides drawn together and vertically iolded upon themselves to form a substantially V-shaped 'sealed pocket abovethe body.

8. A non-collapmble paper container, compris- Y ing a multi-ply construction formed o! rectangular body portions of substantially equal height sealed together into a unitary structure and having a strong 'rectangular multi-ply bottom structure composed of an inset piece interlocked and in sealed contact with the bottom edges of the body portionsoi the container, and also having upper flexible walls of lesser ply opening into the interior oi.' the container, said ilexible walls being creased slightly inward and folded vertically upon themselves to provide a sealed closure, a slidable spring-like sealing means for maintaining the overlapped edges of the ilexible walls in sealed contactwhen the container is not in use,

. and a water-proof coating completely covering said container to prevent leakage and to assist in maintaining rigidity between the several parts.

9. A non-collapsible paper container, comprising a main body structure formed of multi-ply layers in its end walls and layers oi' at least twoply in its side walls, said body structure extended to form single-ply upper flexible walls and lower single-plyportions adapted to overlap each other in the ilnlshed construction, and a single-ply bottom structure the walls oi which are interlocked between the bottom edge walls of the body l structure and also having the lower extensions oi the body structure overlapped and in sealed contact with the underside of the bottom strucv ture; and wherein also, the upper iiexible end walls are creased slightly inward to bring the side walls together, said side walls overlapped to provide a sealed closure i'or the container, and a slidable metallic spring-like sealing means is alsoY provided for maintaining the overlapped walls in ilrm closed contact when the container is not in use. and wherein further. the paper container as a whole is water-prooted against leakage.

10. A non-collapsible paper container, comprising inner and outer body structure o! substantially rectangular shape sealed together into a tensions adaptedto be folded and overlapped,l

upon each other in permanent sealed contact,

and an inset bottom portion in sealed and interlocked contact between thev lower extensions and edges oi the bottom walls oi' the container and providing a bottom closure having greater ply and rigidity than the side or end walls, and

wherein also, the container is water-proofed throughout against leakage and provided with a slidable spring-like sealing'means ,for the upper overlapped walls to temporarily seal the container when not in use.

LEWIS KINSLEY.

WILLIAM.` C. KINSLEY.

N. B. CHAVEAS. 

